In case you haven't heard, Conor McGregor returned to UFC after a two-year absence on Saturday night challenging Khabib Nurmagomedov for the lightweight title in UFC 229.

But things didn’t go as he anticipated during the build-up to the fight and Khabib exhibited his phenomenal grappling skills inside the octagon to successfully defend his belt.

Dominating proceedings right from the start, Khabib mauled McGregor on the ground from round one, taking it slow to wear out the former champion before eventually ending it in the fourth round.

Despite showcasing his defensive attributes and countering Khabib initially, it proved to be too much for the Irishman to withstand as he tapped out on a rear-naked choke from the Russian ace.

The incredible post-fight scenes has somewhat overshadowed what happened inside the octagon as McGregor failed to ever really establish himself in the bout.

And just to rub further salt in Conor’s wounds, his former sparring partner turned bitter rival Paulie Malignaggi has provided a very unsympathetic reaction to the result.

The history of Conor and Malignaggi dates back to the Floyd Mayweather fight last year and the pair have never really seen eye-to-eye ever since.

Questioning the credibility of the former two-division world champion, Malignaggi told FightHype: “When you’re a p**** it’s always going to come out when you’re in combat sports. You can only hide that fact for so long because you’re going to get pressed to the point where you have to show some balls.”

“This guy I’ve been saying it or a while, is going to go down as the most overrated guy in mixed martial arts history. He continuously signed checks that his a** couldn’t cash.

"He had an overhyped record on the come up,” added the 37-year-old, currently working with Showtime as a commentator.

“This is the most overhyped guy in combat sports history, forget mixed martial arts.”

It remains to be seen if McGregor decides to reply to Malignaggi’s assessment of him or let his actions do all the talking in future as he considers the options that lay ahead.